Garvity-motor.



m3. 639,803. Patented Dec. 26, I899. J. A. WORKMAN.

GRAVITY MOTOR.

(Application filed Apr. 18, 1899.)

( No Model.)

2 Sheets-Sheet 1,

JNVENTOR N, D. C Tu NORRIS wzrzas 0a.. FHQYKLLITNO WASHINGTO No. 639,803. Patented Dec. 26, I899.

. .1. A. WDRKMANP GRAVITY MOTOR.

(Application filed Apr. 18, 1899.) (No Model.) 2 Sheets-Sheet 2.

INVENTOR Allorney THE Numus PETERS co, PNOTOLITNQ. wAsmNeToN. n. c.

UNITED STATES ATEN FFICE;

JAMES A. WORKMAN, OF NEW MADRID, MISSOURI.

G RAVITY-MOTO R.

SPECIFICATION forming part of Letters Patent N 0. 639,803, dated December 26, 1899.

Application filed April 18, 1899.

To all whom it may concern.-

Be it known that 1, JAMES A. XVORKMAN, a citizen of the United States, residing at New Madrid,in the county of New Madrid and State of Missouri, have invented certain new and useful Improvements in Gravity-Motors and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to gravity-motors; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a front View of the motor. Fig. 2 is a side view of the motor. Fig. 3 is a detail View of the stop mechanism. Fig. 4 is a detailyiew of the winding-barrel. Fig. 5 shows detail views of the disks and 7a.

A is a frame of any approved form and construction.

B is a main shaft journaled in bearings a on the frame A.

O is a heavy weight which drives the motor, and when the frame Arests on the ground the weight slides in a pit or well formed in the ground.

0 is the cord or chain, which is attached to the weight and wound on the barrel D, and c is a guide-sheave, supported by the frame, for the cord 0 to pass over. v

The barrel D is journaled on the shaftB and is provided vwith a pivoted spring-pressed pawl d, which engages with a ratchet-toothed wheel 61, secured on the shaft B, so that the Weight revolves the shaft B by turning the barrel and wheel (1 as it descends by gravity.

E is the winding-lever, which is journaled on the shaft B. This lever is provided with a pivoted spring-pressed pawl e, which engages with a ratchet-toothed wheel e on one end of the barrel D.

F is a ratchet-toothed wheel formed on a drum F, which is splined to the shaft 13 bya spline b.

, G is the stop, which is pivoted at one end on a pin 9, projecting from the frame. This stop is provided at its free end with aforked jaw g, which straddles the wheel F and engages with its teeth. This stop normally pre- Serial No. 713,492. (No model.)

vents the shaft B from revolving andenables the cord to be wound upon the barrel on oscillating the winding-lever, thereby raising the weight.

H is the stop-lever,which is pivoted on a pin h, projecting from the frame, and h is a link pivoted'to the short end of the lever H by a pin t and provided with an elongated hole I, which engages with a projection 11 on the free end portion of the stop G. The stop is raised out of engagement with the ratchet-toothed Wheel by depressing the stop-lever, and the elongated hole I permits the ratchet-teeth to raise and lower the stop when the motor is being wound up, so that the said teeth pass under the stop.

Three disks j, 70, and m are formed on the drum F parallel with the ratchet-toothed wheel F and are provided with projections j, and m, respectively. The disk has four projections, the disk It has two projections, and the disk m has' one projection; but different numbers of projections may be used. After the motor has been started by raising the stop clear of the ratchet-toothed wheel the drum F is slid on the shaft, so that the forked jaw g engages with one or the other of the disks. The motor continues to operate until the next projection on the disk selected comes against the stop and arrests the motion of the motor. The time during which the motor will operate is determined by the disk selected and placed in engagement with the forked jaw of the stop. When the motor stops, it can be started for another similar period by raising the stop by means of the stop-lever and permitting it to reengage with the same disk when the said disk has revolved to a slight extent.

driven by a toothed wheel 7c, secured on the shaft B. The train Kis supported by an auxiliary frame A, secured to the frame A.

2, 3, 4, 5, 6, and 7 are the shafts of the train of wheels, which shafts are journaled in the frame A. Each shaft has a toothed-wheel n and a toothed pinion '21 secured on it. The pinion n on shaft 2 gears into the wheel 70 on the shaft B. Each remaining pinion 1t gears into the wheel a next before it in the train.

M is a shaft journaled in the frame A and provided with a toothed pinion M, which gears into the wheel 12 on the shaft 7. More or less wheels and pinions than those shown may be used to form the train of gearing. The wheels and pinions are preferably arranged equidistant from and around a central point, and the auxiliary frame A is pref erably circular.

The shaft 3 has a projecting end portion 3, and the stop-drum'F may be carried by this end portion instead of by the shaft B, if desired. In a similar manner the stop-drum may be carried by any other shaft, according to the time it is desired to set the motor to run.

N is a crank or crank-disk secured on the shaft M and provided with a crank-pin 0.

P is a horizontal frame secured to the frame A and provided with a vertical extension 19, carrying a guide 13.

R R are two toothed wheels carried by shafts r r and arrangedin the frame P.

S is a pump-rod provided with a doubletoothed rack s, which engages with the teeth of the wheels R R. The pump-rod slides in the guide 19'.

T is a spring which is secured to the projecting upper end of the pump-rod and which bears against the guide 19. This spring assists in raising the pump-rod.

Acrank or arm 25 is secured on the shaft 0", and t is a connecting-rod which couples the crankt to the crank-pin 0. The throw of the crank or arm tis arranged so that the continuous circular motion of the crank 0r crank-disk N is transformed into rec-iprocatory motion, and the pump-rod is moved up and down vertically. The arm tis oscillated back and forth by the connecting-rod and is not revolved.

This motor is used principally for working a pump; but it may be used fOljtlly other purpose to which it can be applied.

VVha-t I claim is- 1. In a motor, the combination with adriving-shaft, and means for revolving it; of a slidable drum revolving with the said shaft and provided with disks having projections on their peripheries, and a stop for engaging with either of the said disks, substantially as set forth.

2. In a gravity-motor, the combination, witha driving-shaft, a barrel operatively connected with thedrivingshaft, and a weight operating to revolve the said shaft and barrel; of a ratchet-toothed wheel revolving with the driving-shaft, a pivoted stop engaging with the said wheel, a pivoted stop-lever, and a link pivoted to the stop-lever and provided with an elongated hole which engages with a projection on The said stop and permits it to move vertically without moving the said stoplever during the winding-up operation, substantially as set forth.

3. In a gravitymotor, the combination, with a driving-shaft, a barrel operatively connected with the driving-shaft, and a weight operating to revolve the said shaft and barrel; of a slidable drum splined to the said shaft and provided with disks having projections on their peripheries, a pivoted stop provided with a forked jaw for engaging with either of the said disks, and means for raising the said stop, substantially as set forth.

In testimony whereof I affix my signature in presence of two-witnesses.

JAMES A. WORKMAN.

Witnesses:

HARRELL JOHNSON, DAVID HUNTER. 

